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OECD Conference Recent Developments in the Danish System for Access to Micro data

OECD Conference Recent Developments in the Danish System for Access to Micro data. Lars Borchsenius Head of Division Statistics Denmark. Phases. From survey- to registerbased statistics 1968: The Person Number From mid-1980s increased interest in micro data for research and analysis

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OECD Conference Recent Developments in the Danish System for Access to Micro data

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  1. OECD ConferenceRecent Developments in the Danish System for Access to Micro data Lars Borchsenius Head of Division Statistics Denmark

  2. Phases • From survey- to registerbased statistics • 1968: The Person Number • From mid-1980s increased interest in micro data for research and analysis • On-site arrangement in 1987 • Remote access arrangement in 2001

  3. The Organisational Framework • Data for research are handled by a special Research Services Division • 13 employees (8 academics, 4 computer specialists, 1 secretary) • Grant from the Ministry of Research • Small branch in Århus, Jutland

  4. The Research Service Unit • Administration of the remote access arrangements • Administrative work concerning authorizations, contracts etc. • Coordinating data from different divisions i Statistics Denmark • Computer related work. Updating research databases • Advisory role – new and old projects

  5. Vision • Denmark should be one of the World´s leading countries within registerbased research

  6. Research Databases • Special microdata sets for research • Reducing costs • Special research topics: • Labour Market Research Data Base • Demographich Database • Social Research Databse • In-patients Register (hospitals) • Register of Medicinal Products Statistics • etc.

  7. Who can have access to microdata? • Only persons (researchers or analysts) from special authorized intistutions (stable institutions with a responsible manager and with a number of researchers/analysts) • Private companies can be authorized and have access if they have a stable research environment

  8. Exceptions • Single companies cannot have access to microdata with data for other companies • Only data after a ”need to know” principle • SD can reduce data (samples and grouping)

  9. The Unix Solution • Special Unix-computer(s) only for access to micro data • Separated from the statistical production (main frame) • Upgrated several times since 1996 • Software: Flexible but most used is SAS, STATA, GAUSS, SPSS • The de-identified micro data remains on the discs in SD

  10. Windows Solution • In the coming period Statistics Denmark will change from a UNIX environment to a Windows Solution

  11. Token – RSA SecurID

  12. Output? • Researchers are not allowed to print individual records and cannot download the basic data • Output with statistical results is forwarded by e-mail • Output is checked by SD manualy

  13. Latest development • The remote access arrangement are now the dominant mode of access to micro data • The on-site arrangement has been closed down during 2004 except from a few workplaces for foreign researchers

  14. Considerable growth • 1986: 2 researchers • 1997: 71 researchers • 2002: 151 researchers • 2004: 250 researchers • 2005: 300 researchers • 2006: 400 researchers

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